42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
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/* utils/ashmem.h
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**
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** Copyright 2008 The Android Open Source Project
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**
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** This file is dual licensed. It may be redistributed and/or modified
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** under the terms of the Apache 2.0 License OR version 2 of the GNU
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** General Public License.
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*/
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#ifndef _UTILS_ASHMEM_H
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#define _UTILS_ASHMEM_H
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#include <linux/limits.h>
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#include <linux/ioctl.h>
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#define ASHMEM_NAME_LEN 256
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#define ASHMEM_NAME_DEF "dev/ashmem"
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/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */
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#define ASHMEM_NOT_REAPED 0
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#define ASHMEM_WAS_REAPED 1
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/* Return values from ASHMEM_UNPIN: Is the mapping now pinned or unpinned? */
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#define ASHMEM_NOW_UNPINNED 0
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#define ASHMEM_NOW_PINNED 1
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#define __ASHMEMIOC 0x77
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#define ASHMEM_SET_NAME _IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN])
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#define ASHMEM_GET_NAME _IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN])
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#define ASHMEM_SET_SIZE _IOW(__ASHMEMIOC, 3, size_t)
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#define ASHMEM_GET_SIZE _IO(__ASHMEMIOC, 4)
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#define ASHMEM_SET_PROT_MASK _IOW(__ASHMEMIOC, 5, unsigned long)
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#define ASHMEM_GET_PROT_MASK _IO(__ASHMEMIOC, 6)
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#define ASHMEM_PIN _IO(__ASHMEMIOC, 7)
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#define ASHMEM_UNPIN _IO(__ASHMEMIOC, 8)
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#define ASHMEM_ISPINNED _IO(__ASHMEMIOC, 9)
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#define ASHMEM_PURGE_ALL_CACHES _IO(__ASHMEMIOC, 10)
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#endif /* _UTILS_ASHMEM_H */
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